Moved, renamed, and deleted files

The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.

1 files changed, 0 insertions, 360 deletions

diff --git a/ANDROID_3.4.5/arch/arm/mach-omap2/clkt_dpll.c b/ANDROID_3.4.5/arch/arm/mach-omap2/clkt_dpll.c
deleted file mode 100644
index cd7fd0f9..00000000
--- a/ANDROID_3.4.5/arch/arm/mach-omap2/clkt_dpll.c
+++ /dev/null
@@ -1,360 +0,0 @@
-/*
- * OMAP2/3/4 DPLL clock functions
- *
- * Copyright (C) 2005-2008 Texas Instruments, Inc.
- * Copyright (C) 2004-2010 Nokia Corporation
- *
- * Contacts:
- * Richard Woodruff <r-woodruff2@ti.com>
- * Paul Walmsley
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#undef DEBUG
-
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/clk.h>
-#include <linux/io.h>
-
-#include <asm/div64.h>
-
-#include <plat/clock.h>
-#include <plat/cpu.h>
-
-#include "clock.h"
-#include "cm-regbits-24xx.h"
-#include "cm-regbits-34xx.h"
-
-/* DPLL rate rounding: minimum DPLL multiplier, divider values */
-#define DPLL_MIN_MULTIPLIER		2
-#define DPLL_MIN_DIVIDER		1
-
-/* Possible error results from _dpll_test_mult */
-#define DPLL_MULT_UNDERFLOW		-1
-
-/*
- * Scale factor to mitigate roundoff errors in DPLL rate rounding.
- * The higher the scale factor, the greater the risk of arithmetic overflow,
- * but the closer the rounded rate to the target rate.  DPLL_SCALE_FACTOR
- * must be a power of DPLL_SCALE_BASE.
- */
-#define DPLL_SCALE_FACTOR		64
-#define DPLL_SCALE_BASE			2
-#define DPLL_ROUNDING_VAL		((DPLL_SCALE_BASE / 2) * \
-					 (DPLL_SCALE_FACTOR / DPLL_SCALE_BASE))
-
-/* DPLL valid Fint frequency band limits - from 34xx TRM Section 4.7.6.2 */
-#define OMAP3430_DPLL_FINT_BAND1_MIN	750000
-#define OMAP3430_DPLL_FINT_BAND1_MAX	2100000
-#define OMAP3430_DPLL_FINT_BAND2_MIN	7500000
-#define OMAP3430_DPLL_FINT_BAND2_MAX	21000000
-
-/*
- * DPLL valid Fint frequency range for OMAP36xx and OMAP4xxx.
- * From device data manual section 4.3 "DPLL and DLL Specifications".
- */
-#define OMAP3PLUS_DPLL_FINT_JTYPE_MIN	500000
-#define OMAP3PLUS_DPLL_FINT_JTYPE_MAX	2500000
-#define OMAP3PLUS_DPLL_FINT_MIN		32000
-#define OMAP3PLUS_DPLL_FINT_MAX		52000000
-
-/* _dpll_test_fint() return codes */
-#define DPLL_FINT_UNDERFLOW		-1
-#define DPLL_FINT_INVALID		-2
-
-/* Private functions */
-
-/*
- * _dpll_test_fint - test whether an Fint value is valid for the DPLL
- * @clk: DPLL struct clk to test
- * @n: divider value (N) to test
- *
- * Tests whether a particular divider @n will result in a valid DPLL
- * internal clock frequency Fint. See the 34xx TRM 4.7.6.2 "DPLL Jitter
- * Correction".  Returns 0 if OK, -1 if the enclosing loop can terminate
- * (assuming that it is counting N upwards), or -2 if the enclosing loop
- * should skip to the next iteration (again assuming N is increasing).
- */
-static int _dpll_test_fint(struct clk *clk, u8 n)
-{
-	struct dpll_data *dd;
-	long fint, fint_min, fint_max;
-	int ret = 0;
-
-	dd = clk->dpll_data;
-
-	/* DPLL divider must result in a valid jitter correction val */
-	fint = clk->parent->rate / n;
-
-	if (cpu_is_omap24xx()) {
-		/* Should not be called for OMAP2, so warn if it is called */
-		WARN(1, "No fint limits available for OMAP2!\n");
-		return DPLL_FINT_INVALID;
-	} else if (cpu_is_omap3430()) {
-		fint_min = OMAP3430_DPLL_FINT_BAND1_MIN;
-		fint_max = OMAP3430_DPLL_FINT_BAND2_MAX;
-	} else if (dd->flags & DPLL_J_TYPE) {
-		fint_min = OMAP3PLUS_DPLL_FINT_JTYPE_MIN;
-		fint_max = OMAP3PLUS_DPLL_FINT_JTYPE_MAX;
-	} else {
-		fint_min = OMAP3PLUS_DPLL_FINT_MIN;
-		fint_max = OMAP3PLUS_DPLL_FINT_MAX;
-	}
-
-	if (fint < fint_min) {
-		pr_debug("rejecting n=%d due to Fint failure, "
-			 "lowering max_divider\n", n);
-		dd->max_divider = n;
-		ret = DPLL_FINT_UNDERFLOW;
-	} else if (fint > fint_max) {
-		pr_debug("rejecting n=%d due to Fint failure, "
-			 "boosting min_divider\n", n);
-		dd->min_divider = n;
-		ret = DPLL_FINT_INVALID;
-	} else if (cpu_is_omap3430() && fint > OMAP3430_DPLL_FINT_BAND1_MAX &&
-		   fint < OMAP3430_DPLL_FINT_BAND2_MIN) {
-		pr_debug("rejecting n=%d due to Fint failure\n", n);
-		ret = DPLL_FINT_INVALID;
-	}
-
-	return ret;
-}
-
-static unsigned long _dpll_compute_new_rate(unsigned long parent_rate,
-					    unsigned int m, unsigned int n)
-{
-	unsigned long long num;
-
-	num = (unsigned long long)parent_rate * m;
-	do_div(num, n);
-	return num;
-}
-
-/*
- * _dpll_test_mult - test a DPLL multiplier value
- * @m: pointer to the DPLL m (multiplier) value under test
- * @n: current DPLL n (divider) value under test
- * @new_rate: pointer to storage for the resulting rounded rate
- * @target_rate: the desired DPLL rate
- * @parent_rate: the DPLL's parent clock rate
- *
- * This code tests a DPLL multiplier value, ensuring that the
- * resulting rate will not be higher than the target_rate, and that
- * the multiplier value itself is valid for the DPLL.  Initially, the
- * integer pointed to by the m argument should be prescaled by
- * multiplying by DPLL_SCALE_FACTOR.  The code will replace this with
- * a non-scaled m upon return.  This non-scaled m will result in a
- * new_rate as close as possible to target_rate (but not greater than
- * target_rate) given the current (parent_rate, n, prescaled m)
- * triple. Returns DPLL_MULT_UNDERFLOW in the event that the
- * non-scaled m attempted to underflow, which can allow the calling
- * function to bail out early; or 0 upon success.
- */
-static int _dpll_test_mult(int *m, int n, unsigned long *new_rate,
-			   unsigned long target_rate,
-			   unsigned long parent_rate)
-{
-	int r = 0, carry = 0;
-
-	/* Unscale m and round if necessary */
-	if (*m % DPLL_SCALE_FACTOR >= DPLL_ROUNDING_VAL)
-		carry = 1;
-	*m = (*m / DPLL_SCALE_FACTOR) + carry;
-
-	/*
-	 * The new rate must be <= the target rate to avoid programming
-	 * a rate that is impossible for the hardware to handle
-	 */
-	*new_rate = _dpll_compute_new_rate(parent_rate, *m, n);
-	if (*new_rate > target_rate) {
-		(*m)--;
-		*new_rate = 0;
-	}
-
-	/* Guard against m underflow */
-	if (*m < DPLL_MIN_MULTIPLIER) {
-		*m = DPLL_MIN_MULTIPLIER;
-		*new_rate = 0;
-		r = DPLL_MULT_UNDERFLOW;
-	}
-
-	if (*new_rate == 0)
-		*new_rate = _dpll_compute_new_rate(parent_rate, *m, n);
-
-	return r;
-}
-
-/* Public functions */
-
-void omap2_init_dpll_parent(struct clk *clk)
-{
-	u32 v;
-	struct dpll_data *dd;
-
-	dd = clk->dpll_data;
-	if (!dd)
-		return;
-
-	v = __raw_readl(dd->control_reg);
-	v &= dd->enable_mask;
-	v >>= __ffs(dd->enable_mask);
-
-	/* Reparent the struct clk in case the dpll is in bypass */
-	if (cpu_is_omap24xx()) {
-		if (v == OMAP2XXX_EN_DPLL_LPBYPASS ||
-		    v == OMAP2XXX_EN_DPLL_FRBYPASS)
-			clk_reparent(clk, dd->clk_bypass);
-	} else if (cpu_is_omap34xx()) {
-		if (v == OMAP3XXX_EN_DPLL_LPBYPASS ||
-		    v == OMAP3XXX_EN_DPLL_FRBYPASS)
-			clk_reparent(clk, dd->clk_bypass);
-	} else if (cpu_is_omap44xx()) {
-		if (v == OMAP4XXX_EN_DPLL_LPBYPASS ||
-		    v == OMAP4XXX_EN_DPLL_FRBYPASS ||
-		    v == OMAP4XXX_EN_DPLL_MNBYPASS)
-			clk_reparent(clk, dd->clk_bypass);
-	}
-	return;
-}
-
-/**
- * omap2_get_dpll_rate - returns the current DPLL CLKOUT rate
- * @clk: struct clk * of a DPLL
- *
- * DPLLs can be locked or bypassed - basically, enabled or disabled.
- * When locked, the DPLL output depends on the M and N values.  When
- * bypassed, on OMAP2xxx, the output rate is either the 32KiHz clock
- * or sys_clk.  Bypass rates on OMAP3 depend on the DPLL: DPLLs 1 and
- * 2 are bypassed with dpll1_fclk and dpll2_fclk respectively
- * (generated by DPLL3), while DPLL 3, 4, and 5 bypass rates are sys_clk.
- * Returns the current DPLL CLKOUT rate (*not* CLKOUTX2) if the DPLL is
- * locked, or the appropriate bypass rate if the DPLL is bypassed, or 0
- * if the clock @clk is not a DPLL.
- */
-u32 omap2_get_dpll_rate(struct clk *clk)
-{
-	long long dpll_clk;
-	u32 dpll_mult, dpll_div, v;
-	struct dpll_data *dd;
-
-	dd = clk->dpll_data;
-	if (!dd)
-		return 0;
-
-	/* Return bypass rate if DPLL is bypassed */
-	v = __raw_readl(dd->control_reg);
-	v &= dd->enable_mask;
-	v >>= __ffs(dd->enable_mask);
-
-	if (cpu_is_omap24xx()) {
-		if (v == OMAP2XXX_EN_DPLL_LPBYPASS ||
-		    v == OMAP2XXX_EN_DPLL_FRBYPASS)
-			return dd->clk_bypass->rate;
-	} else if (cpu_is_omap34xx()) {
-		if (v == OMAP3XXX_EN_DPLL_LPBYPASS ||
-		    v == OMAP3XXX_EN_DPLL_FRBYPASS)
-			return dd->clk_bypass->rate;
-	} else if (cpu_is_omap44xx()) {
-		if (v == OMAP4XXX_EN_DPLL_LPBYPASS ||
-		    v == OMAP4XXX_EN_DPLL_FRBYPASS ||
-		    v == OMAP4XXX_EN_DPLL_MNBYPASS)
-			return dd->clk_bypass->rate;
-	}
-
-	v = __raw_readl(dd->mult_div1_reg);
-	dpll_mult = v & dd->mult_mask;
-	dpll_mult >>= __ffs(dd->mult_mask);
-	dpll_div = v & dd->div1_mask;
-	dpll_div >>= __ffs(dd->div1_mask);
-
-	dpll_clk = (long long)dd->clk_ref->rate * dpll_mult;
-	do_div(dpll_clk, dpll_div + 1);
-
-	return dpll_clk;
-}
-
-/* DPLL rate rounding code */
-
-/**
- * omap2_dpll_round_rate - round a target rate for an OMAP DPLL
- * @clk: struct clk * for a DPLL
- * @target_rate: desired DPLL clock rate
- *
- * Given a DPLL and a desired target rate, round the target rate to a
- * possible, programmable rate for this DPLL.  Attempts to select the
- * minimum possible n.  Stores the computed (m, n) in the DPLL's
- * dpll_data structure so set_rate() will not need to call this
- * (expensive) function again.  Returns ~0 if the target rate cannot
- * be rounded, or the rounded rate upon success.
- */
-long omap2_dpll_round_rate(struct clk *clk, unsigned long target_rate)
-{
-	int m, n, r, scaled_max_m;
-	unsigned long scaled_rt_rp;
-	unsigned long new_rate = 0;
-	struct dpll_data *dd;
-
-	if (!clk || !clk->dpll_data)
-		return ~0;
-
-	dd = clk->dpll_data;
-
-	pr_debug("clock: %s: starting DPLL round_rate, target rate %ld\n",
-		 clk->name, target_rate);
-
-	scaled_rt_rp = target_rate / (dd->clk_ref->rate / DPLL_SCALE_FACTOR);
-	scaled_max_m = dd->max_multiplier * DPLL_SCALE_FACTOR;
-
-	dd->last_rounded_rate = 0;
-
-	for (n = dd->min_divider; n <= dd->max_divider; n++) {
-
-		/* Is the (input clk, divider) pair valid for the DPLL? */
-		r = _dpll_test_fint(clk, n);
-		if (r == DPLL_FINT_UNDERFLOW)
-			break;
-		else if (r == DPLL_FINT_INVALID)
-			continue;
-
-		/* Compute the scaled DPLL multiplier, based on the divider */
-		m = scaled_rt_rp * n;
-
-		/*
-		 * Since we're counting n up, a m overflow means we
-		 * can bail out completely (since as n increases in
-		 * the next iteration, there's no way that m can
-		 * increase beyond the current m)
-		 */
-		if (m > scaled_max_m)
-			break;
-
-		r = _dpll_test_mult(&m, n, &new_rate, target_rate,
-				    dd->clk_ref->rate);
-
-		/* m can't be set low enough for this n - try with a larger n */
-		if (r == DPLL_MULT_UNDERFLOW)
-			continue;
-
-		pr_debug("clock: %s: m = %d: n = %d: new_rate = %ld\n",
-			 clk->name, m, n, new_rate);
-
-		if (target_rate == new_rate) {
-			dd->last_rounded_m = m;
-			dd->last_rounded_n = n;
-			dd->last_rounded_rate = target_rate;
-			break;
-		}
-	}
-
-	if (target_rate != new_rate) {
-		pr_debug("clock: %s: cannot round to rate %ld\n", clk->name,
-			 target_rate);
-		return ~0;
-	}
-
-	return target_rate;
-}
-